// Madness.java
// Andrew Davison, ad@coe.psu.ac.th, Nov. 2022

/* Plot a parametric figure called Miller's Madness.
   From "The Magic Machine" by A. K. Dewdney. 

   Usage:
     > compile Madness.java
     > run Madness
*/


public class Madness
{
  public static void main(String[] args)
  {
    StdDraw.setXscale(-1.7, +1.7);
    StdDraw.setYscale(-1.1, +1.1);

    double x0 = -0.7, y0 = 1.0;
    for (double t = 0.0; true; t += 0.01) {   // never stops
      double x1 = Math.sin(0.99*t) - 0.7*Math.cos(3.01*t);
      double y1 = Math.cos(1.01*t) + 0.1*Math.sin(15.03*t);
      StdDraw.line(x0, y0, x1, y1);
      x0 = x1;
      y0 = y1;
    }
  } /* main */

}